Not apple4apple

Article: Parallelism at HotPar 2010
By: AM (myname4rwt.delete@this.jee-male.com), August 9, 2010 1:09 am
Room: Moderated Discussions
Michael S (already5chosen@yahoo.com) on 8/6/10 wrote:
---------------------------
>AM (myname4rwt@jee-male.com) on 8/6/10 wrote:
>---------------------------
>>none (none@none.com) on 8/5/10 wrote:
>>---------------------------
>>>I picked the one which claims x300 speedup.
>>>
>>>http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-17-22-20178
>>>
>>>"In comparison,we compiled the CPU implementation, tMCimg,
>>>using the “-O3” option with the gcc compiler and double-
>>>precision computation on a single core of an Intel 64bit Xeon
>>>processor of 1.86GHz."
>>>
>>>So single core, low frequency, double precision, out-of-the
>>>box compilation. Enough said.
>>
>>They got these results using a card available (new) for $80+ these days http://www.google.com/products?q=9800+GT&scoring=p
>>
>>> (8800GT no longer avail, 9800GT uses the same G92 chip).
>>
>>Apparently, $80 won't buy you even the cheapest new Core 2 Duo, let alone a 1.86 GHz Xeon, which can cost as little as $188 (E5502) or as much as $3157 (L7555) http://www.intc.com/priceList.cfm
>
>That's stupid argument. Video card can't do anything on its own.

But neither can any CPU. Right, you can't run a system w/o a CPU, so to make the argument valid we should adjust for the price of the cheapest CPU. But even then, the $45 delta (cheapest Celeron) is just enough to shift to the cheapest Core 2 Duo. Keep in mind that component costs (PCB, RAM, all the supporting circuitry) work against the GPU, and do so to a larger extent when low-cost hw like said 9800 GT is considered.

In general, it would be ridiculous to discount the price argument as inessential (except for theoretical research) since as long as there are codes for GPU and CPU doing the same thing, the smarter buy is one that costs less for the req'd performance.

It needs at least
>$400 PC that includes (for Intel platform) at least $43 CPU (meet E3300, dual-core,
>2.5 GHz, but small cache and slow bus). So for $70 more you can get $113 E7500 which
>is quite decent 2.93 GHz dual-core with 3MB cache and 1066 FSB and still buy some
>beer on remaining 10 bucks. Or, switch the whole platform to core-i3 and for the
>same $113 get i3-530 - another 2.93 GHz dual-core but with bigger cache and no FSB bottleneck.
>
>Of course, if you have parallel code running on you CPU than buying dual-core makes
>little sense from price/performance perspective. Its much smarter to invest another
>$170 (< 50% increase if you look at the price of the whole system and not just a
>CPU) and get $284 i7-860 - 2.8GHz quad-core with HT, turboboost, 8MB L3 cache. Or,
>if you found HT not helpful, you can get exactly the same chip with HT permanently
>disabled now called i5-760 for just $205.
>
>And those just Intel options. AMD offers even more GFLOPs/$.
>Like Phenom II X6 1055T - six 2.8 GHz cores for $199.
>Or Phenom II X4 945 - four 3.0 GHz cores for $149.
>Or, on the low end, X3 720 - three 2.8 GHz cores that I can't find on official
>price list, but with the street prices as low as $99.
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TopicPosted ByDate
Tarek's Hotpar 2010 article onlineDavid Kanter2010/07/27 07:29 AM
  Tarek's Hotpar 2010 article onlineAnon2010/07/27 01:57 PM
    Tarek's Hotpar 2010 article onlineDavid Kanter2010/07/27 10:48 PM
      Tarek's Hotpar 2010 article onlineAnon2010/07/28 02:44 PM
        Tarek's Hotpar 2010 article onlineanon2010/07/28 04:10 PM
        CPU+GPUDavid Kanter2010/07/29 11:38 AM
          CPU+GPUMark Christiansen2010/07/30 06:36 AM
            CPU+GPUhobold2010/07/30 06:54 AM
              CPU+GPUGabriele Svelto2010/07/30 07:18 AM
                CPU+GPUhobold2010/07/30 02:46 PM
              CPU+GPUAaron Spink2010/08/02 05:32 PM
                CPU+GPUhobold2010/08/03 03:33 AM
                  CPU+GPURicardo B2010/08/03 04:19 AM
            CPU+GPU - the software problemVincent Diepeveen2010/07/31 04:50 PM
              CPU+GPU - the software problemmpx2010/08/02 11:19 AM
                CPU+GPU - the software problemRichard Cownie2010/08/02 12:48 PM
                  CPU+GPU - the software problemGabriele Svelto2010/08/02 11:10 PM
                    CPU+GPU - the software problemhobold2010/08/03 03:41 AM
                      CPU+GPU - the software problemRichard Cownie2010/08/03 05:17 AM
                        CPU+GPU - the software problemhobold2010/08/04 06:45 AM
                          NVidia in a holeRichard Cownie2010/08/04 07:23 AM
                            NVidia in a holeRohit2010/08/04 07:33 AM
                              NVidia in a holeRichard Cownie2010/08/04 07:50 AM
                                NVidia in a holeRohit2010/08/05 06:31 AM
                                  NVidia in a holeGroo2010/08/05 01:08 PM
                                NVidia in a holeGroo2010/08/05 01:07 PM
                              NVidia in a holeMark Roulo2010/08/04 08:26 AM
                                NVidia in a holeLaughabee2010/08/18 07:28 AM
                            Can nVidia survive without a sub-$100 GPU market?Mark Roulo2010/08/04 08:29 AM
                              Can nVidia survive without a sub-$100 GPU market?Richard Cownie2010/08/04 08:42 AM
                                Can nVidia survive without a sub-$100 GPU market?Mark Roulo2010/08/04 08:55 AM
                                  Can nVidia survive without a sub-$100 GPU market?Linus Torvalds2010/08/04 10:35 AM
                                    "profit" is subjectiveRichard Cownie2010/08/04 10:49 AM
                                      "profit" is subjectivea reader2010/08/06 03:54 AM
                                        no price warRichard Cownie2010/08/06 06:18 AM
                                  Can nVidia survive without a sub-$100 GPU market?Aaron Spink2010/08/04 11:19 AM
                                  Can nVidia survive without a sub-$100 GPU market?Konrad Schwarz2010/08/06 07:13 AM
                                CPU lineup != GPU lineupRohit2010/08/05 06:43 AM
                                  CPU lineup != GPU lineupRichard Cownie2010/08/05 07:12 AM
                                    CPU lineup != GPU lineupRohit2010/08/05 07:37 AM
                                      CPU lineup != GPU lineupRichard Cownie2010/08/05 07:56 AM
                                        CPU lineup != GPU lineupRohit2010/08/05 10:19 AM
                                          CPU lineup != GPU lineuphobold2010/08/06 03:08 AM
                                            CPU lineup != GPU lineupRohit2010/08/06 06:24 AM
                                              CPU lineup != GPU lineuphobold2010/08/06 06:41 AM
                              Can nVidia survive without a sub-$100 GPU market?David Hess2010/08/04 10:31 AM
                              Can nVidia survive without a sub-$100 GPU market?Ricardo B2010/08/04 12:16 PM
                              Semiconductor economicsDavid Kanter2010/08/05 08:13 AM
                                Semiconductor economicsRichard Cownie2010/08/05 08:51 AM
                                  NV buying ViA could shake up thingsRohit2010/08/05 10:09 AM
                                    NV buying ViA could shake up thingsRichard Cownie2010/08/05 10:25 AM
                                      Not likelyDavid Kanter2010/08/05 01:39 PM
                                        Not likelyrandom2010/08/05 01:49 PM
                                          Not likelyAaron Spink2010/08/05 02:18 PM
                                        Not likelyGroo2010/08/05 09:05 PM
                                        Not likelyRohit2010/08/06 06:25 AM
                                    NV buying ViA could shake up thingsGroo2010/08/05 09:02 PM
                                    NV buying ViA could shake up thingsehud2010/08/06 12:53 AM
                                      NV buying ViA could shake up thingsRohit2010/08/06 06:30 AM
                                        NV buying ViA could shake up thingsKevin G2010/08/06 04:54 PM
                                          ViA buying NV could shake up thingsBrendan2010/08/19 05:23 AM
                                        NV buying ViA could shake up thingsGroo2010/08/06 07:24 PM
                            NVidia in a holempx2010/08/04 11:01 AM
                              NVidia in a holeRichard Cownie2010/08/04 11:31 AM
                                NVidia in a holercf2010/08/04 02:40 PM
                              NVidia in a holeRohit2010/08/05 06:51 AM
                              NVidia in a holeGroo2010/08/05 08:50 PM
                              NVidia in a holeAaron Spink2010/08/05 10:52 PM
                          Anyone else wish Intel would buy Nvidia ? (NT)Silent2010/08/07 12:30 AM
                            Hell noa2010/08/07 07:37 PM
                        CPU+GPU - the software problemno thanks2010/08/04 06:54 PM
                          CPU+GPU - the software problemJouni Osmala2010/08/05 12:41 AM
                            CPU+GPU - the software problemIntelUser20002010/08/05 06:54 PM
                              CPU+GPU - the software problemJouni Osmala2010/08/05 08:36 PM
                            CPU+GPU - the software problemLinus Torvalds2010/08/06 07:08 AM
                              CPU+GPU - the software problemanonymous2010/08/06 08:39 AM
                                CPU+GPU - the software problemLinus Torvalds2010/08/06 09:56 AM
                                  non-existent Via+NV vs real OntarioRichard Cownie2010/08/06 11:12 AM
                              CPU+GPU - the software problemkoby m.2010/08/07 01:06 AM
                  CPU+GPU - the software problemhobold2010/08/03 03:48 AM
                CPU+GPU - the software problemhobold2010/08/03 03:45 AM
                  CPU+GPU - the software problemRichard Cownie2010/08/03 05:22 AM
          CPU+GPUAnon2010/07/30 08:11 PM
            CPU+GPUanon2010/07/31 02:19 AM
            CPU+GPUAaron Spink2010/08/02 05:45 PM
          100x speedups -- here we go againAM2010/08/02 12:37 AM
            100x speedups -- here we go againanon2010/08/02 02:32 AM
              100x speedups -- here we go againanon2010/08/02 10:14 PM
            GPU raw H/W only has about a 10x advantage over a CPUMark Roulo2010/08/02 08:41 AM
              GPU raw H/W only has about a 10x advantage over a CPUMichael S2010/08/02 02:31 PM
                GPU raw H/W only has about a 10x advantage over a CPUanon2010/08/02 08:36 PM
                  GPU raw H/W only has about a 10x advantage over a CPUMichael S2010/08/02 11:41 PM
                    GPU raw H/W only has about a 10x advantage over a CPUMark Roulo2010/08/03 07:22 AM
                      GPU raw H/W only has about a 10x advantage over a CPURohit2010/08/04 06:08 AM
                      There is reasonable explanation...Jouni Osmala2010/08/04 09:10 PM
                  GPU raw H/W only has about a 10x advantage over a CPUMark Roulo2010/08/03 07:19 AM
              simple reality check for youAM2010/08/03 12:45 AM
                simple reality check for younone2010/08/03 06:27 AM
                  simple reality check for youAM2010/08/03 10:50 PM
                    simple reality check for youanon2010/08/03 11:06 PM
                      simple reality check for youAM2010/08/05 02:51 AM
                        catch the same boat as everyone else next time (NT)anon2010/08/05 03:44 AM
                Simple reality checkDavid Kanter2010/08/03 07:24 AM
                  Simple reality checkGabriele Svelto2010/08/03 09:51 PM
                  Simple reality checkAM2010/08/03 10:57 PM
                    Simple reality checkanon2010/08/03 11:12 PM
                      Simple reality checkAM2010/08/05 02:59 AM
                        Simple reality checkanon2010/08/05 03:47 AM
                          Study the papers, troll (NT)AM2010/08/05 11:01 PM
                    Simple reality checkhobold2010/08/04 04:05 AM
                    Simple reality checkDean Kent2010/08/04 08:30 AM
                      Simple reality checkMark Roulo2010/08/04 08:59 AM
                      Suggestion for David Kanter and Mark RouloAM2010/08/05 02:57 AM
                        Suggestion for David Kanter and Mark Roulonone2010/08/05 03:22 AM
                          Suggestion for David Kanter and Mark RouloAM2010/08/05 11:04 PM
                        Suggestion for David Kanter and Mark Roulonone2010/08/05 03:38 AM
                          Suggestion for David Kanter and Mark Rouloanon2010/08/05 03:43 AM
                            Suggestion for David Kanter and Mark RouloAM2010/08/05 11:11 PM
                              Suggestion for David Kanter and Mark Rouloanon2010/08/06 06:52 AM
                          Suggestion for David Kanter and Mark RouloAM2010/08/05 11:10 PM
                            Suggestion for David Kanter and Mark Roulonone2010/08/06 12:35 AM
                              price doesn't matter only in theories (NT)AM2010/08/09 01:13 AM
                            Not apple4appleMichael S2010/08/06 04:13 AM
                              Not apple4appleAM2010/08/09 01:09 AM
                                Not apple4appleMichael S2010/08/09 03:35 AM
                                  Not apple4appleAM2010/08/10 12:05 AM
                                    Not apple4applenone2010/08/10 12:38 AM
                                      Back to topicAM2010/08/10 11:03 PM
                                      Final note (and some remarks on Intel's paper)AM2010/08/13 03:28 AM
                                        Final note (and some remarks on Intel's paper)none2010/08/13 08:10 AM
                                          Final note (and some remarks on Intel's paper)AM2010/08/16 12:14 AM
                                            Final note (and some remarks on Intel's paper)none2010/08/16 05:29 AM
                                              One example of 1000X shown to be wrong.sea2010/08/16 06:55 PM
                                                You're short of some factsAM2010/08/17 12:13 AM
                                                  Maybe you need to read beyond the PR statementSteve Underwood2010/08/17 01:39 AM
                                                    Maybe you need to read beyond the PR statementGroo2010/08/17 07:18 PM
                                                    check the hw they usedAM2010/08/18 02:33 AM
                                                Please realize what Monte Carlo meansVincent Diepeveen2010/08/18 02:28 AM
                                              Final note (and some remarks on Intel's paper)AM2010/08/17 12:18 AM
                                        Final note (and some remarks on Intel's paper)anon2010/08/14 12:22 AM
                                          Final note (and some remarks on Intel's paper)AM2010/08/16 12:15 AM
                                            Final note (and some remarks on Intel's paper)anon2010/08/16 01:10 PM
                                              Final note (and some remarks on Intel's paper)AM2010/08/17 12:15 AM
                                                Final note (and some remarks on Intel's paper)Michael S2010/08/17 01:58 AM
                                                  Final note (and some remarks on Intel's paper)AM2010/08/18 02:17 AM
                                                    Final note (and some remarks on Intel's paper)gallier22010/08/18 03:52 AM
                                                    Final note (and some remarks on Intel's paper)Michael S2010/08/18 04:33 AM
                                                      Final note (and some remarks on Intel's paper)Gabriele Svelto2010/08/18 05:11 AM
                                                      Final note (and some remarks on Intel's paper)Steve Underwood2010/08/18 03:03 PM
                                                        Intel might be moving from ISA to platformhobold2010/08/19 02:58 AM
                                                          Intel might be moving from ISA to platformSteve Underwood2010/08/22 06:00 PM
                                                            Intel might be moving from ISA to platformAnon2010/08/22 09:43 PM
                                                              Intel might be moving from ISA to platformajensen2010/08/22 11:37 PM
                                                                Intel might be moving from ISA to platformMichael S2010/08/23 01:13 AM
                                                                  Intel might be moving from ISA to platformSteve Underwood2010/08/23 01:35 AM
                                                                  Intel might be moving from ISA to platformhobold2010/08/26 03:37 AM
                                                                Intel might be moving from ISA to platformAnon2010/08/23 02:47 PM
                                                              Intel might be moving from ISA to platformSteve Underwood2010/08/23 01:25 AM
                                                                Intel might be moving from ISA to platformhobold2010/08/23 02:03 AM
                                                                  Intel might be moving from ISA to platformSteve Underwood2010/08/23 03:26 AM
                                                                Intel might be moving from ISA to platformAnon2010/08/23 02:55 PM
                                                                Intel might be moving from ISA to platformrwessel2010/08/23 05:41 PM
                                                                  Intel might be moving from ISA to platformSteve Underwood2010/08/23 06:30 PM
                                                                    Intel might be moving from ISA to platformrwessel2010/08/23 08:50 PM
                                                                      Intel might be moving from ISA to platformSteve Underwood2010/08/23 09:34 PM
                                                                        Intel might be moving from ISA to platformrwessel2010/08/24 12:03 AM
                                                              Intel might be moving from ISA to platformIan Ollmann2010/08/23 08:21 PM
                                                          Intel might be moving from ISA to platformajensen2010/08/22 09:36 PM
                                                            Intel might be moving from ISA to platformIan Ollmann2010/08/23 08:45 PM
                                                      Final note (and some remarks on Intel's paper)AM2010/08/19 12:29 AM
                                                        Final note (and some remarks on Intel's paper)Richard2010/08/19 03:51 AM
                                                          I stand corrected.Michael S2010/08/19 04:30 AM
                simple reality check for youanonymous2010/08/03 09:25 AM
                  simple reality check for youAM2010/08/03 10:47 PM
                    simple reality check for youanonymous2010/08/04 09:17 AM
                      simple reality check for youanon2010/08/04 07:33 PM
                      SPECint/FPAM2010/08/05 02:49 AM
                  simple reality check for youRohit2010/08/13 07:31 PM
                    simple reality check for youhobold2010/08/16 05:29 AM
              maybe texture caches ?Richard Cownie2010/08/03 08:27 AM
                maybe texture caches ?none2010/08/03 08:59 AM
                  maybe texture caches ?Richard Cownie2010/08/03 09:15 AM
                    maybe texture caches ?Mark Roulo2010/08/03 09:23 AM
                      maybe texture caches ?Richard Cownie2010/08/03 09:33 AM
                        maybe texture caches ?Mark Roulo2010/08/03 09:37 AM
                          the Hess paperRichard Cownie2010/08/03 10:16 AM
                    maybe texture caches ?Aaron Spink2010/08/03 12:23 PM
                      maybe texture caches ?Mark Roulo2010/08/03 03:13 PM
                        maybe texture caches ?Michael S2010/08/04 12:47 AM
                  maybe texture caches ?Michael S2010/08/03 09:23 AM
                maybe texture caches ?Mark Roulo2010/08/03 09:19 AM
                  maybe texture caches ?Richard Cownie2010/08/03 09:42 AM
                Cache to cache comparisonDavid Kanter2010/08/03 11:28 AM
                  Cache to cache comparisonRichard Cownie2010/08/03 11:52 AM
                    Cache to cache comparisonDavid Kanter2010/08/03 12:21 PM
                      Cache to cache comparisonRichard Cownie2010/08/03 02:55 PM
                      Cache to cache comparisonGabriele Svelto2010/08/03 10:23 PM
                        Nehalem vs Core2Richard Cownie2010/08/04 03:24 PM
                          Nehalem vs Core2IntelUser20002010/08/04 06:26 PM
                          Nehalem vs Core2Gabriele Svelto2010/08/04 09:51 PM
                            Nehalem vs Core2Richard Cownie2010/08/05 02:27 AM
                              Nehalem vs Core2Gabriele Svelto2010/08/05 05:00 AM
                                Nehalem vs Core2Richard Cownie2010/08/05 06:10 AM
                                  Nehalem vs Core2Gabriele Svelto2010/08/05 06:41 AM
                                    Nehalem vs Core2Michael S2010/08/05 09:02 AM
                              Nehalem vs Core2Michael S2010/08/05 09:12 AM
                          Nehalem vs Core2Michael S2010/08/04 11:36 PM
                            Nehalem vs Core2Richard Cownie2010/08/05 07:33 AM
                              Nehalem vs Core2Michael S2010/08/05 08:44 AM
                                Nehalem vs Core2Richard Cownie2010/08/05 09:03 AM
                                  Nehalem vs Core2Michael S2010/08/05 03:21 PM
                                    Nehalem vs Core2Richard Cownie2010/08/05 06:15 PM
                                      I'm wrong, you're right - i's 2 dieRichard Cownie2010/08/05 06:21 PM
                                    Nehalem vs Core2Richard Cownie2010/08/06 07:12 AM
                                      Nehalem vs Core2Michael S2010/08/06 07:33 AM
                                      Nehalem L1 cache latency a hedge for higher clock speeds?Mark Roulo2010/08/06 07:36 AM
                                        Nehalem L1 cache latency a hedge for higher clock speeds?Kevin G2010/08/07 09:14 AM
                                          Nehalem L1 cache latency a hedge for higher clock speeds?IntelUser20002010/08/07 01:32 PM
                                        Nehalem L1 cache latency a hedge for higher clock speeds?someone2010/08/07 01:35 PM
                          difference between C2D/C2Q chipsetsMichael S2010/08/04 11:57 PM
                          Nehalem core goals ... my takeMark Roulo2010/08/06 06:53 AM
                            Bulldozer single-threadRichard Cownie2010/08/06 03:05 PM
                          Nehalem vs Core2Carlie Coats2010/08/07 07:41 AM
                            scalingMichael S2010/08/07 10:12 AM
                            why X5460?Michael S2010/08/07 10:12 AM
                              why X5460?Carlie Coats2010/08/08 03:34 AM
                                why X5460?Michael S2010/08/08 03:42 AM
                                  Polling/PIO based COMM libraries?Michael S2010/08/08 04:14 AM
                    Cache to cache comparisonAnts Aasma2010/08/04 09:00 AM
                      Cache to cache comparisonRichard Cownie2010/08/04 09:08 AM
                        Cache to cache comparisonAnts Aasma2010/08/04 10:28 AM
                      Cache to cache comparisonMichael S2010/08/04 10:33 AM
                        Cache to cache comparisonMark Roulo2010/08/04 11:29 AM
                          Cache to cache comparisonAnts Aasma2010/08/04 12:10 PM
                            Fermi and G200 instruction latencyMark Roulo2010/08/04 01:10 PM
                              Fermi and G200 instruction latencyAnts Aasma2010/08/04 02:01 PM
                        Cache to cache comparisonAnts Aasma2010/08/04 12:00 PM
                        Register read comparisonDavid Kanter2010/08/05 08:16 AM
                          Register read comparisonGabriele Svelto2010/08/05 10:42 PM
                maybe texture caches ?Aaron Spink2010/08/03 12:17 PM
              GPU raw H/W only has about a 10x advantage over a CPURichard2010/08/09 03:58 AM
                GPU raw H/W only has about a 10x advantage over a CPUnone2010/08/09 04:19 AM
                  GPU raw H/W only has about a 10x advantage over a CPUVincent Diepeveen2010/08/24 06:18 AM
                    Forget it, they won't hear itanon2010/08/24 03:37 PM
                    GPU raw H/W only has about a 10x advantage over a CPURichard2010/08/25 12:03 PM
                This forum supports pre tagMichael S2010/08/09 05:03 AM
    Tarek's Hotpar 2010 article onlineRich Vuduc2010/07/28 09:24 AM
      Tarek's Hotpar 2010 article onlineAnon2010/07/28 03:18 PM
  Low hanging fruitMoritz2011/02/03 11:20 AM
    Low hanging fruitJukka Larja2011/02/06 04:01 AM
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